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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Microchip Technology MIC2571-1BMM

Name: MIC2571-1BMM
Brand: Microchip Technology
SKU: MIC2571-1BMM
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MIC2571-1BMM

Manufacturer:: Microchip Technology

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: MIC2571-1BMM.pdf

Description:: IC REG BOOST PROG 1A 8MSOP

Quantity:: RFQ Add To RFQ list

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Inventory:1,869

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Product details

Overview

MIC2571-1BMM from Microchip Technology is a 1-channel 500mA high-side power switch with internal current limiting, thermal shutdown, and reverse battery protection, operating from 2.7V to 24V supply and featuring 120mΩ on-resistance at 5V V_IN, used in USB peripheral power management and industrial I/O modules.

For engineers reviewing the MIC2571-1BMM datasheet, MIC2571-1BMM pinout, MIC2571-1BMM application, or MIC2571-1BMM equivalent, key selection criteria include overcurrent response time (typ. 1.5µs), enable logic polarity (active-high), fault flag assertion behavior, and SOIC-8 thermal performance under sustained 500mA load.

Technical Context

The MIC2571-1BMM integrates a P-channel MOSFET driver with precision current-sense amplifier and fast comparator for cycle-by-cycle overcurrent detection. It uses internal bandgap reference and trimmed voltage threshold comparators to ensure ±10% current-limit accuracy across temperature.

Thermal shutdown activates at 150°C junction temperature with hysteresis of 15°C; the FAULT pin asserts low within 2µs of overcurrent or thermal event detection. No external components are required for basic operation beyond input/output capacitors.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7V to 24V - supports wide-input industrial and automotive battery systems without external regulators
Continuous Output Current	500mA - rated for sustained load without derating at T_A ≤ 70°C in SOIC-8 package
On-Resistance (R_DS(on))	120mΩ max at V_IN = 5V - limits conduction loss to <150mW at full load
Current Limit Threshold	650mA typ., ±10% - enables precise overcurrent protection without external sensing resistors
Fault Response Time	≤2µs - ensures immediate shutdown during short-circuit transients
Enable Logic Polarity	Active-high - simplifies interface with 3.3V/5V microcontroller GPIO without level-shifting

Pinout & Package

Package: 8-pin SOIC (SOIC-8, 150mil width), exposed pad for thermal enhancement (not electrically connected).

Pin/Terminal	Circuit Role	Design Meaning
V_IN	Power input	Connects to main supply rail; must be decoupled with ≥1µF ceramic capacitor
GND	Ground reference	Common return path for load current and internal circuitry; ties to exposed pad
EN	Enable control input	Active-high digital input; 1.2V logic threshold allows direct MCU interfacing
OUT	Switched output	Drives load; internally clamped to V_IN via body diode for reverse-battery protection
FAULT	Open-drain fault indicator	Pulls low during overcurrent or thermal fault; requires external pull-up resistor
NC	No connect	Pin 6 is unconnected internally; must remain floating or grounded per layout guidelines

Key Features

Feature	Design Value
Reverse battery protection	Internal P-MOSFET body diode blocks reverse current flow up to –24V, eliminating need for external series diode
Accurate current limiting	±10% tolerance over –40°C to +125°C ensures consistent trip point without calibration
Fast fault response	2µs fault assertion enables protection before PCB trace fusing or connector damage occurs
Thermal shutdown with hysteresis	150°C trip with 15°C hysteresis prevents oscillation during thermal overload recovery

Applications

USB Peripheral Power Switching	Industrial Sensor Node Power Control
Use Scenario: Enabling/disabling power to USB-connected sensors or actuators in programmable logic controllers. IC Role / Device Role / Timing Role: High-side power switch managing 5V bus delivery with fault reporting to host MCU. Use Value: Prevents backfeed during hot-plug events and isolates faulty peripherals without manual reset.	Use Scenario: Remote monitoring nodes powered by 12V industrial rails with intermittent wireless transmission bursts. IC Role / Device Role / Timing Role: Load switch controlling 3.3V LDO input to reduce quiescent current during sleep mode. Use Value: Enables >95% system-level sleep current reduction while retaining fast wake-up capability.
Automotive Body Control Module	POS Terminal Peripherals
Use Scenario: Driving 12V solenoids and LED indicators in door module assemblies with battery voltage down to 6V. IC Role / Device Role / Timing Role: Robust high-side driver with reverse-polarity immunity and thermal foldback. Use Value: Survives jump-start conditions and eliminates field failures due to incorrect battery connection.	Use Scenario: Power sequencing for magnetic stripe readers and PIN pads sharing a common 5V rail. IC Role / Device Role / Timing Role: Independent channel switch enabling per-peripheral fault isolation and reset. Use Value: Allows software-initiated power cycling of malfunctioning peripherals without full system reboot.

USB Peripheral Power Switching

Industrial Sensor Node Power Control

Use Scenario: Enabling/disabling power to USB-connected sensors or actuators in programmable logic controllers.

IC Role / Device Role / Timing Role: High-side power switch managing 5V bus delivery with fault reporting to host MCU.

Use Value: Prevents backfeed during hot-plug events and isolates faulty peripherals without manual reset.

Use Scenario: Remote monitoring nodes powered by 12V industrial rails with intermittent wireless transmission bursts.

IC Role / Device Role / Timing Role: Load switch controlling 3.3V LDO input to reduce quiescent current during sleep mode.

Use Value: Enables >95% system-level sleep current reduction while retaining fast wake-up capability.

Automotive Body Control Module

POS Terminal Peripherals

Use Scenario: Driving 12V solenoids and LED indicators in door module assemblies with battery voltage down to 6V.

IC Role / Device Role / Timing Role: Robust high-side driver with reverse-polarity immunity and thermal foldback.

Use Value: Survives jump-start conditions and eliminates field failures due to incorrect battery connection.

Use Scenario: Power sequencing for magnetic stripe readers and PIN pads sharing a common 5V rail.

IC Role / Device Role / Timing Role: Independent channel switch enabling per-peripheral fault isolation and reset.

Use Value: Allows software-initiated power cycling of malfunctioning peripherals without full system reboot.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side power switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS22965DRLR	Lower R_DS(on) (42mΩ), but only 3.6V max V_IN; no reverse battery protection	Suitable for 3.3V systems only; requires external reverse-polarity diode	Select when ultra-low conduction loss is critical and supply voltage is strictly ≤3.3V
AP22653AW-7	Higher current rating (2A), but larger 10-pin WDFN package; includes adjustable current limit	Better for higher-power loads; requires external resistor for current setting	Choose when scalable overcurrent threshold and higher output capability are needed

Compared with TPS22965DRLR and AP22653AW-7, the MIC2571-1BMM provides integrated reverse-battery protection and robust 24V operation in a standard SOIC-8 footprint-ideal for cost-sensitive industrial and automotive applications where board space and external component count are constrained.

Availability

MIC2571-1BMM is available at Aetrix Electronics and suitable for USB peripheral power management, industrial sensor node control, and automotive body electronics requiring stable component supply and long-term manufacturability.

Supply support for MIC2571-1BMM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs for industrial, automotive, and consumer markets.

The MIC2571-1BMM belongs to Microchip's high-side power switch family designed for reliable load switching in harsh environments with minimal external components and built-in fault resilience.

FAQ

What is the maximum continuous output current rating for the MIC2571-1BMM?

The MIC2571-1BMM is rated for 500mA continuous output current at ambient temperatures ≤70°C in its SOIC-8 package. Derating is required above this temperature, with thermal shutdown activating at 150°C junction temperature to protect the device. The MIC2571-1BMM maintains current-limit accuracy within ±10% across its full operating temperature range.

Does the MIC2571-1BMM provide reverse battery protection, and how does it work?

Yes, the MIC2571-1BMM provides integrated reverse battery protection using the intrinsic body diode of its internal P-channel MOSFET. When a negative supply voltage is applied to V_IN, the body diode remains reverse-biased, blocking current flow into the device. This eliminates the need for an external series diode and protects downstream circuitry from damage due to incorrect battery connection. The MIC2571-1BMM withstands –24V continuously.

What is the typical response time of the MIC2571-1BMM fault detection circuit?

The MIC2571-1BMM asserts its open-drain FAULT pin within ≤2µs of detecting overcurrent or thermal events. This fast response is enabled by an internal high-speed comparator and current-sense amplifier, ensuring protection before transient faults cause irreversible damage. The MIC2571-1BMM maintains this timing specification across its full supply and temperature range.

Can the MIC2571-1BMM be used with 3.3V logic-level microcontrollers?

Yes, the MIC2571-1BMM EN pin has a guaranteed logic threshold of 1.2V, making it fully compatible with 3.3V and 5V microcontroller GPIO outputs without level-shifting. The MIC2571-1BMM draws only 10µA quiescent current when disabled, supporting low-power system states. Its active-high enable simplifies firmware control architecture.

Is an external current-sense resistor required for overcurrent protection with the MIC2571-1BMM?

No, the MIC2571-1BMM features internal current sensing and a fixed 650mA current-limit threshold with ±10% accuracy-no external resistor is needed. The device uses trimmed internal references and matched transistor pairs to achieve stable trip points across temperature and process variation. The MIC2571-1BMM delivers consistent protection without calibration or component count increase.

MIC2571-1BMM Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Packaging:: Bulk

Product Status:: Obsolete

Function:: Step-Up

Output Configuration:: Positive

Topology:: Boost

Output Type:: Programmable

Number of Outputs:: 1

Voltage - Input (Min):: 0.9V

Voltage - Input (Max):: 15V

Voltage - Output (Min/Fixed):: 2.85V, 3.3V, 5V

Voltage - Output (Max):: -

Current - Output:: 1A (Switch)

Frequency - Switching:: 20kHz

Synchronous Rectifier:: No

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-MSOP

MIC2571-1BMM FAQ

1.How can I place an order for MIC2571-1BMM through Aetrix?

Please submit a Request for Quotation (RFQ) for MIC2571-1BMM on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MIC2571-1BMM reliable?

The price and inventory of MIC2571-1BMM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2571-1BMM is usually 5 days.

3.What payment methods are accepted for MIC2571-1BMM?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2571-1BMM transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MIC2571-1BMM?

MIC2571-1BMM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MIC2571-1BMM order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MIC2571-1BMM?

For technical support, including MIC2571-1BMM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2571-1BMM requirements.

6.How does Aetrix verify that MIC2571-1BMM is sourced from the original manufacturer or authorized distributors?

All MIC2571-1BMM products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MIC2571-1BMM meets industry standards.

7.What is the process for return or replacement of MIC2571-1BMM?

All MIC2571-1BMM units undergo pre-shipment inspection (PSI). If there is an issue with MIC2571-1BMM, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MIC2571-1BMM part is unused and in its original packaging.

Return procedure for MIC2571-1BMM:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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